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Document / 11 pages

Asbestos air sampling results for December 2001

Machine-extracted title · confidence 95%

Laboratory report detailing transmission electron microscopy analysis of air samples collected in December 2001.

NYC-WTC_000130525–000130535

Folder label: “E-Mail 1/2/02

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Scanned page image, NYC-WTC_000130527
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NYC-WTC_000130527 NYC Response Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time: 12/03/01 1200 to 2359 Sampling Sampling Sample Date 12/03/01 Sample No. Location RST-01447 Volume* 720 12/03/01 RST-01448 12/03/01 12/03/01 RST-01449 1164.5 12/03/01 RST-01450 RST-01451 1224 12/03/01 RST-01452 12/03/01 RST-01453 12/03/01 12/03/01 RST-01454 720 12/03/01 RST-01455 720 RST-01456 C-Dup 720 12/03/01 RST-01457 720 12/03/01 RST-01458 H-Dup 12/03/01 RST-01459 - 12/03/01 12/03/01 RST-01460 RST-01461 12/03/01 RST-01462 12/03/01 RST-01463 12/03/01 RST-01464 720 12/03/01 RST-01465 720 12/03/01 RST-01466 720 12/03/01 RST-01467 720 12/03/01 RST-01468 W 12/04/01 FB120401 Field Blank 609 12/04/01 TB120401 Trip Blank Sampling Locations: A: NE corner of West Broadway & Barclay B: SE corner of Church & Dey St. C: Trinity (a.k.a. Church) & Liberty C1: SW corner of Broadway & Liberty St. D: East end of Albany St. at Greenwich St. E: Western end of Liberty St. at South End Ave F: Northern median strip of Vesey & West St G: Church and Duane St. H: South side of Chase Manhattan Plaza at Pine St. I: SE corner of Wall St. & Broadway J: NE comner of Warren & West St. K: West St. & Albany in median strip L: On walkway toward North Park rec area (north side of Suyvesant High), access to TAGA bus area Matrix PCM by NIOSH 7400 f/mm? f/cc <7.0 <7.0 <0.004 <0.004 <7.0 <0.002 <7.0 <0.005 <7.0 <7.0 <0.002 8.92 <0.005 <7.0 0.005 <0.004 <7.0 <7.0 <0.004 <7.0 <0.004 <0.004 <7.0 <7.0 <0.004 <0.004 <7.0 <0.004 <7.0 <0.004 <7.0 <0.004 <7.0 <7.0 <0.004 <0.004 <7.0 <7.0 <0.004 <7.0 <0.004 8.28 <0.004 0.005 <7.0 n/a <7.0 n/a Structures 0.5р - 54 0000 NA(2) NA(2) TEM (AHERA) S/mm? <8.89 <8.89 <13.33 <8.00 <13.33 <8.00 <8.89 <8.89 <8.89 <8.89 <8.89 <8.89 <8.89 <8.89 <8.89 <8.89 oo <8.89 <8.89 <8.89 <8.89 <8.89 NA(2) NA(2) <8.00 NA(2) NA(2) M: Western end of Harrison St. at West St. (on tree next to bulkhead) M1 : West St.- 50 yards south of Harrison St. at bulkhead N: South side of Pier 25 (next to volleyball ct) P: NE corner of South End Ave. & Albany Q: Barclay & West St. (center island) in proximity to USCG command post R: TAGA Bus Location S: Rector & South End T: Pier 6 Heliport U: Pier 6 Exit 2 V: Pier 6 Bus Sign W: Wash Tent Common Area NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm?, volume 1200 L, for 25 mm filter (TEM) FL-12-03-01-pm Data Validation Date: 12/06/01 S-f/cc** <0.0048 <0.0048 <0.0044 <0.0052 <0.0042 <0.0061 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0048 <0.0051 NA(2) NA(2) * Sample volume (iters) is below recommended limit for the TEM method; volume is based on pump reading ** Structure (S) is roughly equivalent to fiber (f) ***Chrysotile NA(1) - Not analyzed due to overloading of particulates NA(2)- Not analyzed for TEM NA(3) - Not analyzed due to wet filter n/a- Not applicable NR - Not requested NS - Sample not submitted due to no sample volume NYC 9/11 Public Portal Document

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NYC-WTC_000130527Source: NYC Law Department, mirrored locally

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